CN108153057A - A kind of quantum-dot structure, backlight module and display device - Google Patents
A kind of quantum-dot structure, backlight module and display device Download PDFInfo
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- CN108153057A CN108153057A CN201810040117.0A CN201810040117A CN108153057A CN 108153057 A CN108153057 A CN 108153057A CN 201810040117 A CN201810040117 A CN 201810040117A CN 108153057 A CN108153057 A CN 108153057A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of quantum-dot structure, backlight module and display device, belongs to display technology field, can solve the problems, such as that existing quantum dot layer marginal position blue side easily occurs and is not suitable for narrow viewing angle product.In the quantum-dot structure of the present invention; quanta point material is set to the inside of the laminated multiple protrusions of base material; in this way when the quantum-dot structure of flood is cut application; it is isolated along the outside of protrusion; the quanta point material at marginal position after cutting is still within lobed interior; it is protected by protrusion, is not easy to be corroded by water oxygen and be gone bad, does not interfere with shining for marginal position.Importantly, when protrusion is paraboloid, quantum-dot structure can send out collimated light after being excited, and degree of collimation is high, brightness is high.The quantum-dot structure of the present invention is suitable for various display devices, is particularly suitable for narrow viewing angle product such as peep-proof product and ultra-narrow visual angle product.
Description
Technical field
The invention belongs to display technology fields, and in particular to a kind of quantum-dot structure, backlight module and display device.
Background technology
Display device generally includes liquid crystal display panel and the backlight module of backlight is provided for liquid crystal display panel, wherein, backlight module
For side entrance back module, which includes blue light source, light guide plate, diffusion sheet and glue frame.
Quantum dot layer, quantum dot layer are set in the one side of the diffusion sheet usually in side entrance back module in the prior art
It is doped with quanta point material in substrate layer.Wherein, the quanta point material in quantum dot layer is in the light by specific wavelength
After irradiation, monochromatic light can be sent out.Specifically, circulation way of the light in the side entrance back module with above structure be such as
Under：The blue light that blue light source is sent out is injected first from the incidence surface of light guide plate, is then spread from the light-emitting surface directive of light guide plate
Piece, then the blue light of directive diffusion sheet is by quantum dot layer, and a part of blue light excitation quantum point, makes quantum dot send out feux rouges at this time
Or green light, another part blue light is directed through quantum dot layer, and is mixed to form white light with above-mentioned feux rouges, green light, to be supplied to
Liquid crystal display panel.
However, the inventor of the present application discovered that at least there are the following problems in the prior art：The quantum dot layer of flood is cut
After cutting application, the quanta point material adulterated at marginal position is easily rotten by water oxygen erosion, influences shining for marginal position.And by
There are gap between marginal position and glue frame, so that a part of blue light projected from the light-emitting surface of light guide plate can be by this
Gap, the edge of direct irradiation to liquid crystal display panel so that blue side phenomenon occurs in display device, lead to the display of display device
It is ineffective.In addition, the backlight module of existing quantum dot is mainly used for the display device at big visual angle, it is not suitable for narrow viewing angle
Product such as peep-proof product and ultra-narrow visual angle product.
Invention content
Easily there is blue side for existing quantum dot layer marginal position and is not suitable for asking for narrow viewing angle product in the present invention
Topic, provides a kind of quantum-dot structure, backlight module and display device.
Technical solution is used by solving present invention problem：
A kind of quantum-dot structure, substrate layer including light-permeable and set on the base material it is laminated on it is multiple can be saturating
The protrusion of light, the lobed interior are equipped with quanta point material.
Optionally, protrusion array arrangement on substrate layer.
Optionally, the quanta point material of a variety of different colours is included in each protrusion, in each protrusion
After quanta point material is excited by non-visible light, the light that they send out is mixed into white light.
Optionally, the protrusion is paraboloid, and the paraboloid is the body for rotating gained along its symmetry axis by parabola,
The quanta point material is set at the position of parabolical focus, and the quanta point material can send out collimated light after being excited.
Optionally, the face that the substrate layer is equipped with protrusion is the first face, and the face opposite with the first face is the second face, described
The orthographic projection of paraboloid to substrate layer is circle, and the circular radius is z, the focus of the paraboloid to the second of substrate layer
The distance in face is h, wherein, ranging from 0-30 ° of arctan (z/h).
Optionally, multiple retroreflective structures are equipped at the portion in the second face of the substrate layer, for by base material
The non-collimated light in the second face of layer carries out reflex reflection.
Optionally, each paraboloid is correspondingly provided with a retroreflective structure, and the retroreflective structure is ring-type, and
In the range of the orthographic projection that the orthographic projection of the paraboloid to substrate layer falls into the retroreflective structure to substrate layer encloses.
Optionally, the thickness of the substrate layer is y, and the focal length of the paraboloid is (1/2) P, the coke of the paraboloid
The distance in point to the first face of substrate layer is r, and on the direction in the second face is parallel to, the ring width of retroreflective structure is x, wherein, x
=y* (P+r)/r.
The present invention also provides a kind of backlight module, including backlight and above-mentioned quantum-dot structure.
Optionally, the backlight includes light guide plate and light source, and the quantum-dot structure is set on the light guide plate light extraction
The side in face, the protrusion are set compared to the substrate layer closer to light guide plate.
Optionally, the light source can excite multiple color quanta point material.
Optionally, the side light source includes ultraviolet LED lamp.
The present invention also provides a kind of display device, including above-mentioned backlight module.
In the quantum-dot structure of the present invention, quanta point material is set to the inside of the laminated multiple protrusions of base material, in this way
When the quantum-dot structure of flood is cut in application, being isolated along the outside of protrusion, it is equivalent to only so that substrate layer edge is cut
Position disconnection is split, the quanta point material at marginal position after cutting is still within lobed interior, that is, quantum dot material before and after cutting
Material local environment does not change, and is protected by protrusion, is not easy to be corroded by water oxygen and go bad, does not interfere with the hair of marginal position
Light.Further, it is also possible to design raised number and density on substrate layer as needed, at marginal position to be cut design compared with
Few protrusion, i.e., in the overlap joint that marginal position reserves certain substrate layer and glue frame fits together perfectly so that substrate layer edge and side
It is seamless between frame, prevent gap light leakage.Importantly, when protrusion is paraboloid, quantum-dot structure can be sent out after being excited
Collimated light, degree of collimation is high, brightness is high.The quantum-dot structure of the present invention is suitable for various display devices, is particularly suitable for narrow
Visual angle product such as peep-proof product and ultra-narrow visual angle product, for example, privacy is shown, the display of 3D display, different visual angles different pictures
Deng.
Description of the drawings
Fig. 1 is the schematic diagram of the quantum-dot structure of the embodiment of the present invention 1；
Fig. 2 is the schematic diagram of the quantum-dot structure of the embodiment of the present invention 2；
Fig. 3-5 is the light extraction schematic diagram of the quantum-dot structure of the embodiment of the present invention 2；
Fig. 6, Fig. 9 are the design size of the quantum-dot structure of the embodiment of the present invention 2, angle schematic diagram；
Fig. 7 is the schematic diagram of the quantum-dot structure of the embodiment of the present invention 2；
Fig. 8 is the schematic top plan view of the quantum-dot structure of the embodiment of the present invention 2；
Figure 10 is the structure diagram of the backlight module of the embodiment of the present invention 3；
Figure 11 is the structure diagram of the display device of the embodiment of the present invention 4；
Wherein, reference numeral is：1st, substrate layer；2nd, it is raised；3rd, quanta point material；4th, retroreflective structure；5th, backlight；
51st, light guide plate；52nd, side light source；6th, display panel；61st, color film.
Specific embodiment
For those skilled in the art is made to more fully understand technical scheme of the present invention, below in conjunction with the accompanying drawings and specific embodiment party
Formula is described in further detail the present invention.
Embodiment 1：
The present embodiment provides a kind of quantum-dot structure, as shown in Figure 1, substrate layer 1 including light-permeable and set on described
The protrusion 2 of multiple light-permeables in the one side of substrate layer 1, described raised 2 are internally provided with quanta point material 3.
In the quantum-dot structure of the present embodiment, quanta point material 3 is set to multiple raised 2 inside of 1 one side of substrate layer,
In this way when the quantum-dot structure of flood is cut in application, being isolated along the outside of protrusion 2, it is equivalent to only so that substrate layer
1 disconnects along position is isolated, and the quanta point material 3 at the marginal position after cutting is still within inside protrusion 2, such quantum dot material
Expect that 3 local environments do not change, by the protection of protrusion 2, be not easy to be corroded by water oxygen and go bad, do not interfere with the hair of marginal position
Light.
Embodiment 2：
The present embodiment provides a kind of quantum-dot structure, as shown in Fig. 2, substrate layer 1 including light-permeable and set on described
The protrusion 2 of multiple light-permeables in the one side of substrate layer 1, described raised 2 are internally provided with quanta point material 3；Wherein, the protrusion
2 on substrate layer 1 array arrangement.
Shown in the corresponding attached drawing 2 of the present embodiment, multiple raised 2 substrate layer 1 side array arrangement, be equivalent to convex
Playing the advantages of quanta point material 3 inside 2 is uniformly arranged, set in this way relative to substrate layer 1 is：When quanta point material 3 is swashed
It can cause light extraction evenly after hair.Specifically, water oxygen resistant section bar material (such as resin) formation of the protrusion 2 using big refractive index,
Forming the material of protrusion 2 can also be different with the material identical of substrate layer 1, specific material is not defined herein.It needs
It is noted that the number and density of protrusion 2 on substrate layer 1 can be designed as needed, set at marginal position to be cut
Haggle over few protrusion 2, i.e., in the overlap joint that marginal position reserves certain substrate layer 1 and glue frame fits together perfectly so that 1 side of substrate layer
It is seamless between edge and frame, prevent gap light leakage.
As a kind of preferred embodiment in the present embodiment, the amount of a variety of different colours is included in each protrusion
Son point material 3, after the quanta point material 3 in each protrusion is excited by non-visible light, the light that they send out is mixed into white light.
In one embodiment, include red quantum dot material, green quanta point material, indigo plant in each described raised 2
Color quanta point material.
Be not the equal of each raised 2 not containing trichromatic quanta point material 3 in each protrusion 2 in the present embodiment
Mixed light is carried out after being excited with color quanta point material 3 so that 2 light extraction after substrate layer 1 of each protrusion is white light.Its
In, quantum dot (Quantum Dot, abbreviation QD) material is a kind of nano particle being made of II-VI group or iii-v element,
Fluorescence can be emitted after being excited, and luminescent spectrum can be controlled by changing the size of quantum dot.Specifically, quantum dot
CdS, CdSe, CdTe, ZnO, ZnS, ZnSe, ZnTe of material 3 including II-VI group etc. and GaAs, GaP of iii-v, GaAs,
GaSb, HgS, HgSe, HgTe, InAs, InP, InSb, AlAs, AlP, AlSb etc..
In one embodiment, as shown in figure 3, described raised 2 be paraboloid, the paraboloid is right along its by parabola
Claim the body of axis rotation gained, the quanta point material is set at the position of parabolical focus, and the quanta point material is excited
After can send out collimated light.
That is, described raised 2 the outer surface in the section on the face of substrate layer 1 be parabolic type, this reality
The structural section figure that an amplified independent protrusion 2 and substrate layer 1 are shown in the corresponding attached drawing 4 of example is applied, wherein, the protrusion
2 shape can regard parabolic build as, and quanta point material 3 is set at the focal position of paraboloid, such quanta point material 3
After being excited, most of exciting light is as shown in a in Fig. 5, and directly collimation projects, and protrusion is equipped with substrate layer in the present embodiment
Face is the first face, and the face opposite with the first face is the second face, wherein the second face is light-emitting surface, i.e., in 1 light-emitting surface (Fig. 4 of substrate layer
The upper surface of middle substrate layer 1) face paraboloid bottom surface (face that paraboloid is contacted with substrate layer 1) position at project wide portion
It is divided into collimated light.An also small part is collimated after being reflected on paraboloid surface and is projected as shown in the c in Fig. 5.Work as quanta point material
3 include trichromatic quanta point material 3 when, trichromatic light can be mixed into white light in the light extraction of substrate layer 1.That is the present embodiment
Quantum-dot structure can send out collimated white after being excited, which is suitable for narrow viewing angle product such as peep-proof product and ultra-narrow
Visual angle product.
In one embodiment, the paraboloid to substrate layer 1 orthographic projection for circle, the circular radius be z, institute
The distance for stating focus to 1 light-emitting surface of substrate layer of paraboloid is h, wherein, ranging from 0-30 ° of arctan (z/h).
Shown in the corresponding attached drawing 6 of the present embodiment the focus of paraboloid, distance h, radius z schematic diagram, wherein, tan θ
=z/h, in general, when θ is smaller, the degree of collimation of collimated light is higher, at ranging from 0-30 ° of arctan (z/h), collimated light collimation
Degree is higher, and light emission rate is higher.
In one embodiment, multiple retroreflective structures 4 are equipped at the portion of the light-emitting surface of the substrate layer 1, are used
In the non-collimated light of the light-emitting surface of substrate layer 1 is carried out reflex reflection.
It is understood that the light-emitting surface of substrate layer 1 and not all emergent light is all collimated light, inevitably has
A small amount of non-collimated light is emitted, and is shown in the corresponding attached drawing 7 of the present embodiment and is added retroreflective structure at the position of non-collimated light
4, the effect of retroreflective structure 4 is：As shown in the b in Fig. 5, by raised 2 structures of non-collimated light backtracking, pass through paraboloid
Focus after again collimation outgoing.
As a kind of preferred embodiment in the present embodiment, each paraboloid is correspondingly provided with a retroreflective structure
4, the retroreflective structure 4 is ring-type, and the orthographic projection of the paraboloid to substrate layer 1 falls into the retroreflective structure 4 to base
In the range of the orthographic projection of material layer 1 encloses.
The vertical view of quantum-dot structure is shown in the corresponding attached drawing 8 of the present embodiment, it is more on the light-emitting surface of substrate layer 1
A 4 array arrangement of retroreflective structure, wherein, paraboloid is corresponded with retroreflective structure 4, i.e., in the corresponding position of each paraboloid
The place of putting is respectively provided with a retroreflective structure 4, so as to which the non-collimated light on each paraboloid periphery is carried out reflex reflection.
As a kind of preferred embodiment in the present embodiment, as shown in figure 9, the thickness of the substrate layer 1 is y, it is described
The focal length of paraboloid is (1/2) P, and the distance in focus to the first face of substrate layer of the paraboloid is r, is being parallel to light-emitting surface
Direction on, the ring width of retroreflective structure 4 is x, wherein, x=y* (P+r)/r.
That is, referring to Fig. 9, the discovery of inventor's creativeness：The thickness of substrate layer and the focal length of paraboloid etc. meet x
During=y* (P+r)/r relationships, product can be caused to realize higher degree of collimation, the brightness of product light extraction can also be improved, it is real
Existing narrow viewing angle.Wherein brightness is improved it is clear that and realizing that narrow viewing angle shows privacy, 3D display, different visual angles difference are drawn
The special applications such as the display in face then have a very big significance.
It is understood that the size of each structure sheaf, thickness etc. shown in attached drawing are only to illustrate.It is each to tie in technique realization
The projected area of structure layer on substrate may be the same or different, such, be not listed herein, can pass through etching
Technique realizes required each structure sheaf projected area；Meanwhile structure shown in attached drawing does not limit the geometry of each structure sheaf, example yet
It can be such as rectangle shown in the drawings, can also be the formed shape of trapezoidal or other etchings, it equally can be real by etching
It is existing.
Embodiment 3：
The present embodiment provides a kind of backlight module, including backlight and above-mentioned quantum-dot structure.
Using above-mentioned quantum-dot structure in the backlight module of the present embodiment, the light extraction of the backlight module is collimated light, energy
Realize high collimation outgoing.Without diffusion, prismatic lens etc. in the backlight module, suitable for narrow viewing angle product such as peep-proof product and ultra-narrow
Visual angle product.
As a kind of preferred embodiment in the present embodiment, as shown in Figure 10, the backlight 5 includes light guide plate 51,
And the side light source 52 set on 51 a side of light guide plate, the quantum-dot structure are set on the side of 51 light-emitting surface of light guide plate,
Described raised 2 are set compared to the substrate layer 1 closer to light guide plate 51.
It is illustrated by taking side light source as an example in the present embodiment, it is to be understood that being also using direct-light-type backlight can
Capable, in this not go into detail.
As a kind of preferred embodiment in the present embodiment, the side light source 52 includes ultraviolet LED lamp.
Wherein, the quanta point material 3 of red green blue tricolor is excited so as to mix as side light source 52 using ultraviolet LED lamp
To white light, for blue light is used to excite red green quanta point material 3 and then the white light being mixed to get in the prior art, this reality
Blue light will not be penetrated even if applying the scheme of example there are micro gaps at the position of product edge, can further avoid generating
Blue side phenomenon.It should be noted that it is illustrated by taking ultraviolet LED lamp as an example in the present embodiment, it is to be understood that as long as
The light source that multiple color quanta point material can be excited is feasible.
Embodiment 4：
A kind of display device is present embodiments provided, including any one above-mentioned backlight module.The display device can
Think：Liquid crystal display panel, Electronic Paper, mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigation
Any product or component with display function such as instrument.
As a kind of preferred embodiment in the present embodiment, as shown in figure 11, display device is further included set on backlight mould
Display panel 6 on group light-emitting surface, wherein, be equipped with color film 61 in display panel 6, color film 61 in backlight module ultraviolet light it is saturating
Cut-off is crossed, the ultraviolet light that preferably can prevent directly to expose in this way is emitted showing.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, in the essence for not departing from the present invention
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of quantum-dot structure, which is characterized in that substrate layer including light-permeable and set on the base material it is laminated on
The protrusion of multiple light-permeables, the lobed interior are equipped with quanta point material.
2. quantum-dot structure according to claim 1, which is characterized in that protrusion array arrangement on substrate layer.
3. quantum-dot structure according to claim 1, which is characterized in that include a variety of different face in each protrusion
The quanta point material of color, after the quanta point material in each protrusion is excited by non-visible light, light that they send out is mixed into white
Light.
4. quantum-dot structure according to claim 1, which is characterized in that the protrusion is paraboloid, and the paraboloid is
By body of the parabola along its symmetry axis rotation gained, the quanta point material is set at the position of parabolical focus, the amount
Son point material can send out collimated light after being excited.
5. quantum-dot structure according to claim 4, which is characterized in that the face that the substrate layer is equipped with protrusion is first
Face, the face opposite with the first face are the second face, and the orthographic projection of the paraboloid to substrate layer is circle, and the circular radius is
Z, the distance in focus to the second face of substrate layer of the paraboloid is h, wherein, ranging from 0-30 ° of arctan (z/h).
6. quantum-dot structure according to claim 5, which is characterized in that at the portion in the second face of the substrate layer
Equipped with multiple retroreflective structures, for the non-collimated light in the second face of substrate layer to be carried out reflex reflection.
7. quantum-dot structure according to claim 6, which is characterized in that each paraboloid be correspondingly provided with one it is converse
Structure is penetrated, the retroreflective structure is ring-type, and the orthographic projection of the paraboloid to substrate layer falls into the retroreflective structure extremely
In the range of the orthographic projection of substrate layer encloses.
8. quantum-dot structure according to claim 7, which is characterized in that the thickness of the substrate layer be y, the paraboloid
Focal length for (1/2) P, the distance in focus to the first face of substrate layer of the paraboloid is r, in the direction for being parallel to the second face
On, the ring width of retroreflective structure is x, wherein, x=y* (P+r)/r.
9. a kind of backlight module, which is characterized in that including backlight and claim 1-8 any one of them quantum-dot structures.
10. backlight module according to claim 9, which is characterized in that the backlight includes light guide plate and light source, described
Quantum-dot structure is set on the side of the light guide plate light-emitting surface, and the protrusion is set compared to the substrate layer closer to light guide plate
It puts, the light source can excite multiple color quanta point material.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113311601A (en) * | 2020-02-27 | 2021-08-27 | 瀚宇彩晶股份有限公司 | Peep-proof device |
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| CN113311601B (en) * | 2020-02-27 | 2024-04-05 | 瀚宇彩晶股份有限公司 | Peep-proof device |
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|---|---|
| CN108153057B (en) | 2020-08-21 |
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